You can apply anti-aliasing to an imported bitmap to smooth the edges in the image. You can also select a compression option to reduce the bitmap file size and format the file for display on the web.
Select a bitmap in the Library panel and click the Properties button at the bottom of the Library panel.
Select Allow Smoothing. Smoothing improves the quality of bitmap images when they are scaled.
For Compression, select one of the following options:
Compresses the image in JPEG format. To use the default compression quality specified for the imported image, select Use Document Default Quality. To specify a new quality compression setting, deselect Use Document Default Quality and enter a value between 1 and 100 in the Quality text field. (A higher setting preserves greater image integrity but yields a larger file size.)
Compresses the image with lossless compression, in which no data is discarded from the image.
Note: Use Photo compression for images with complex color or tonal variations, such as photographs or images with gradient fills. Use lossless compression for images with simple shapes and relatively few colors.
To determine the results of the file compression, click Test. To determine if the selected compression setting is acceptable, compare the original file size to the compressed file size.
Note: JPEG Quality settings that you select in the Publish Settings dialog box do not specify a quality setting for imported JPEG files. Specify a quality setting for each imported JPEG file in the Bitmap Properties dialog box.